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Related Experiment Videos

[Finger Microtremor--an experimental study (author's transl)]

K Mifka, P Wessely, J Zwischenberger

    Wiener Klinische Wochenschrift
    |March 5, 1976
    PubMed
    Summary
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    This study developed a novel apparatus for precisely measuring finger microtremor amplitudes and frequencies in healthy individuals. The findings indicate no significant variations based on age or sex, suggesting broad applicability for tremor assessment.

    Area of Science:

    • Biomedical Engineering
    • Neuroscience
    • Physiology

    Context:

    • Finger microtremor is a subtle physiological movement.
    • Accurate measurement of microtremor is crucial for diagnosing neurological conditions.
    • Existing methods may lack precision or standardization.

    Purpose:

    • To develop and validate a self-constructed apparatus for precise recording of finger microtremor.
    • To quantitatively assess the amplitudes and frequencies of finger movements in healthy subjects.
    • To investigate potential correlations between microtremor characteristics and demographic factors like age and sex.

    Summary:

    • A custom apparatus was used to record finger microtremor in 32 healthy participants (aged 7-60 years).
    • Measurements focused on vertical plane movements, capturing frequencies from 5 to 12 Hz (mean 7.55 Hz) and amplitudes from 0.02 to 1.4 mm (mean 0.12 mm).

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  • No significant differences in tremor amplitude or frequency were observed concerning age or sex.
  • Impact:

    • The developed apparatus provides a reliable tool for accurate, quantitative assessment of various tremor types.
    • This method can aid in the early detection and differential diagnosis of movement disorders.
    • Establishes baseline normative data for finger microtremor in a healthy population.